When Lin Muan was investing in Thailand, he ran into Su Niannian, his lover who had left without saying goodbye three years ago. Su Niannian was on an undercover mission, so she pretended not to know Lin Muan. Depressed, Lin Muan saw Su Niannian and her boss Pan Helong at the bidding meeting, and misunderstood that Su Niannian had a new lover, so she pretended not to know him. Lin Muan approached Su Niannian in all aspects of life and work to find out why she left without saying goodbye. After the airport blunder, Su Niannian and Lin Muan finally reconciled. At this time, Lin Muan discovered that Pan Helong was illegally laundering money and wanted Su Niannian to stay away from Pan Helong. Su Niannian refused to leave Pan Helong's company because of her undercover identity. Su Niannian designed to expose Pan Helong's criminal facts, and Pan Helong held Su Niannian hostage when he tried to escape arrest. Lin Muan rushed to rescue Su Niannian but was deceived by the insidious Pan Helong, but Su Niannian was shot in order to save Lin Muan. Half a month later, Su Niannian woke up to Lin Muan's proposal.